光子学报, 2006, 35 (10): 1455, 网络出版: 2010-06-03  

金刚石窗口冷却Yb3+∶YAG DPSSL设计

Design of a Compact Diamond-Cooled Yb3+∶YAG DPSSL
作者单位
1 国防科技大学光电科学与工程学院,长沙 410073
2 中国工程物理研究院激光聚变研究中心,四川绵阳919信箱988分箱,绵阳 621900
摘要
针对高功率二极管重复率抽运的V型非稳腔Yb3+∶YAG激光头,提出了利用金刚石窗口冷却和直接水冷相结合的复合冷却设计.在YAG片的抽运面进行直接水冷,同时在激光提取面利用金刚石窗口冷却介质.金刚石优异的导热性能不仅能够有效地冷却激光介质,还能消除横向的温度梯度,解决了高功率激光器冷却和高功率抽运的矛盾.模拟结果表明对掺杂10at%厚度为1.6 mm的Yb3+∶YAG片在抽运功率密度为20kW/cm2,重复频率为10 Hz的条件下,要将最高温度控制在可接受的范围内(比如320 K),周围冷却水的对流换热系数约为4000 W/m2K.
Abstract
A compact diamond window cooled Yb3+/SUP> ∶ YAG disk laser has been demonstrated. In this cooling scheme,the rear face of disk is cooled directly by water while the front face of disk is applied in good thermal contact to a thin plate of chemical vapor deposition diamond window. The exceptionally good heat conduction properties of diamond can eliminate the temperature gradients perpendicular to laser beam thus previous difficulties with high average power pumping and efficient cooling are resolved. Simulation results show that with a pump intensity of 20 kW/ cm2 and repetition rate of 10 Hz,to keep the maximum temperature of the gain disk below a reasonable value,e. g.,less than 320K,the heat exchange coefficient of water should be about 4000 W/m2 K.

曹丁象, 於海武, 郑万国, 贺少勃, 徐美健, 王晓峰. 金刚石窗口冷却Yb3+∶YAG DPSSL设计[J]. 光子学报, 2006, 35(10): 1455. Cao Dingxiang, Yu Haiwu, Zheng Wanguo, He Shaobo, Xu Meijian, Wang Xiaofeng. Design of a Compact Diamond-Cooled Yb3+∶YAG DPSSL[J]. ACTA PHOTONICA SINICA, 2006, 35(10): 1455.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!